GB1453878A - Pneumatic sensor of a pressure differential - Google Patents
Pneumatic sensor of a pressure differentialInfo
- Publication number
- GB1453878A GB1453878A GB2701674A GB2701674A GB1453878A GB 1453878 A GB1453878 A GB 1453878A GB 2701674 A GB2701674 A GB 2701674A GB 2701674 A GB2701674 A GB 2701674A GB 1453878 A GB1453878 A GB 1453878A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressures
- nozzle
- crosspiece
- pressure
- bellows
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/08—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
- G01L7/084—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type with mechanical transmitting or indicating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
- G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2278—Pressure modulating relays or followers
- Y10T137/2409—With counter-balancing pressure feedback to the modulating device
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
1453878 Pressure gauge GOSUDARSTV N I INST TEPLOENERGETICHE PRIBOROSTROENIA 18 June 1974 [18 June 1973] 27016/74 Heading G1L [Also in Division G3] In a pneumatic differential pressure sensor, a high pressure is supplied through an aperture 19 in a flange 14 to act on a diaphragm 9' and a low pressure is fed through an aperture 18 in flange 13 to act on a diaphragm 9 and the resulting difference in pressures pivots relative to a nozzle-baffle element 20, a lever 5, about a membrane 7 and two flexible rods 8. Two clamping plates 26, secured both sides of a split block 30 clamped on a bush 2 welded to a body 1, see also Fig. 2 (not shown), have crosspieces secured between them; one crosspiece carries the nozzle-baffle element 20, another crosspiece 25 carries a zero corrector 24 and a crosspiece 23 carries a bellows 22. The sensor operates as follows: - pneumatic pressure is fed to a relay 53, initially both pressures acting on diaphragms 9', 9 are equal, and an output signal from relay 53 created in bellows 22 controls the position of a baffle 34, Fig. 3, relative to a nozzle 33 supplied from the pneumatic relay 53. The lever 5 is acted on by the different pressures in spaces 16, 17 and the pressure in bellows 22 and when these pressures are equal, the sensor output will be a measure of the difference between the two first mentioned pressures. The crosspiece 23 can be adjusted along slot 32 in plates 26 and by a threaded projection 41 screwed in a ring 42 movable along the shafts, Fig. 4 (not shown). The zero corrector 24 is adjusted, through a hole 60, by tensioning a spring, Fig. 5 (not shown), attached at one end to the device and at the other to the shafts. The baffle 34 position relative to the nozzle 33 outlet is initially determined by an adjustable screw 35.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU731933183A SU508123A1 (en) | 1973-06-18 | 1973-06-18 | Pneumatic transducer of heat engineering parameter |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1453878A true GB1453878A (en) | 1976-10-27 |
Family
ID=20556889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2701674A Expired GB1453878A (en) | 1973-06-18 | 1974-06-18 | Pneumatic sensor of a pressure differential |
Country Status (10)
Country | Link |
---|---|
US (1) | US3939712A (en) |
CS (1) | CS172030B1 (en) |
DD (1) | DD116903A1 (en) |
DE (1) | DE2429137C3 (en) |
FI (1) | FI61359C (en) |
FR (1) | FR2233613B1 (en) |
GB (1) | GB1453878A (en) |
HU (1) | HU172947B (en) |
IN (1) | IN139677B (en) |
SU (1) | SU508123A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3968693A (en) * | 1975-05-21 | 1976-07-13 | Fischer & Porter Co. | Open-loop differential-pressure transmitter |
US4546785A (en) * | 1981-10-09 | 1985-10-15 | Cybar Corporation | Pressure translator and system for measuring pressure |
US5796007A (en) * | 1996-09-23 | 1998-08-18 | Data Instruments, Inc. | Differential pressure transducer |
CN100464160C (en) * | 2006-01-12 | 2009-02-25 | 中国科学院长春光学精密机械与物理研究所 | Absolute compound axis photoelectric shaft-position encoder |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB585683A (en) * | 1944-03-07 | 1947-02-19 | Charles Henry Gregory | Improvements in and relating to indicating, recording and controlling apparatus |
FR1137524A (en) * | 1954-09-01 | 1957-05-29 | Foxboro Co | Advanced device sensitive to differential pressure |
GB790294A (en) * | 1955-08-26 | 1958-02-05 | Foxboro Co | Differential fluid pressure controlled apparatus |
US3274833A (en) * | 1963-04-23 | 1966-09-27 | Fischer & Porter Co | Differential pressure transmitters |
GB1213502A (en) * | 1967-09-08 | 1970-11-25 | Foxboro Co | Differential pressure measuring apparatus |
US3474673A (en) * | 1968-01-26 | 1969-10-28 | Foxboro Co | Differential-pressure-responsive apparatus |
-
1973
- 1973-06-18 SU SU731933183A patent/SU508123A1/en active
-
1974
- 1974-06-17 FR FR7420971A patent/FR2233613B1/fr not_active Expired
- 1974-06-17 FI FI1845/74A patent/FI61359C/en active
- 1974-06-18 GB GB2701674A patent/GB1453878A/en not_active Expired
- 1974-06-18 HU HUGO001278 patent/HU172947B/en unknown
- 1974-06-18 DD DD17925174A patent/DD116903A1/xx unknown
- 1974-06-18 US US05/480,496 patent/US3939712A/en not_active Expired - Lifetime
- 1974-06-18 CS CS428174A patent/CS172030B1/cs unknown
- 1974-06-18 DE DE2429137A patent/DE2429137C3/en not_active Expired
- 1974-06-26 IN IN1427/CAL/74A patent/IN139677B/en unknown
Also Published As
Publication number | Publication date |
---|---|
HU172947B (en) | 1979-01-28 |
IN139677B (en) | 1976-07-17 |
FR2233613A1 (en) | 1975-01-10 |
DE2429137C3 (en) | 1979-11-08 |
DE2429137A1 (en) | 1975-01-09 |
FR2233613B1 (en) | 1976-06-25 |
SU508123A1 (en) | 1982-09-30 |
FI61359C (en) | 1982-07-12 |
DD116903A1 (en) | 1975-12-12 |
US3939712A (en) | 1976-02-24 |
CS172030B1 (en) | 1976-12-29 |
FI61359B (en) | 1982-03-31 |
DE2429137B2 (en) | 1979-03-08 |
FI184574A (en) | 1974-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |